//-----------------------------------------------------------------------
// <copyright file="ComparisonMatcherTest.cs" company="NMock2">
//
//   http://www.sourceforge.net/projects/NMock2
//
//   Licensed under the Apache License, Version 2.0 (the "License");
//   you may not use this file except in compliance with the License.
//   You may obtain a copy of the License at
//
//       http://www.apache.org/licenses/LICENSE-2.0
//
//   Unless required by applicable law or agreed to in writing, software
//   distributed under the License is distributed on an "AS IS" BASIS,
//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//   See the License for the specific language governing permissions and
//   limitations under the License.
// </copyright>
// This is the easiest way to ignore StyleCop rules on this file, even if we shouldn't use this tag:
// <auto-generated />
//-----------------------------------------------------------------------
namespace NMock2.Test.Matchers
{
    using System;
    using NUnit.Framework;
    using NMock2.Matchers;

    [TestFixture]
    public class ComparisonMatcherTest
    {
        [Test]
        public void MatchesAComparisonOfAComparableValue()
        {
            Matcher matcher;
            
            matcher = new ComparisonMatcher(10, -1, 0);
            Assert.IsTrue(matcher.Matches(9), "less");
            Assert.IsTrue(matcher.Matches(10), "equal");
            Assert.IsFalse(matcher.Matches(11), "greater");

            matcher = new ComparisonMatcher(10, -1, -1 );
            Assert.IsTrue(matcher.Matches(9), "less");
            Assert.IsFalse(matcher.Matches(10), "equal");
            Assert.IsFalse(matcher.Matches(11), "greater");

            matcher = new ComparisonMatcher(10, 0, 1 );
            Assert.IsFalse(matcher.Matches(9), "less");
            Assert.IsTrue(matcher.Matches(10), "equal");
            Assert.IsTrue(matcher.Matches(11), "greater");
        }

        [Test]
        public void DoesNotMatchObjectOfDifferentType()
        {
            Assert.IsFalse((new ComparisonMatcher(10,0,0)).Matches("a string"));
        }

        [Test,ExpectedException(typeof(ArgumentException))]
        public void CannotCreateComparisonThatMatchesAnything()
        {
            new ComparisonMatcher(10, -1, 1);
        }
        
        [Test]
        public void CanSpecifyMinAndMaxComparisonResultInAnyOrder()
        {
            Matcher matcher = new ComparisonMatcher(10, 0, -1);
            Assert.IsTrue(matcher.Matches(9), "less");
            Assert.IsTrue(matcher.Matches(10), "equal");
            Assert.IsFalse(matcher.Matches(11), "greater");
        }
        
        [Test]
        public void HasReadableDescription()
        {
            AssertDescription.IsEqual(new ComparisonMatcher(10, -1, -1), "? < <10>");
            AssertDescription.IsEqual(new ComparisonMatcher(10, -1, 0), "? <= <10>");
            AssertDescription.IsEqual(new ComparisonMatcher(10, 0, 0), "? = <10>");
            AssertDescription.IsEqual(new ComparisonMatcher(10, 0, 1), "? >= <10>");
            AssertDescription.IsEqual(new ComparisonMatcher(10, 1, 1), "? > <10>");
        }
    }
}
